SDK: fix #152 SceneComposer/SceneViewer bug in open/close Scene
Merge pull request #153 from davidB/fix_152

SDK: fix #152 SceneComposer/SceneViewer bug in open/close Scene
Added eclipse project entries to gitignore.
Fixed some issues with SDK lodGenerator wizard
- setting 10 lod levels was not working
- generating lod levels didn't mark the file as modified if there was no lod levels before.
SDK : One can now rename or delete an animation in the Scene Explorer
Fixed issue in shadows15.glsllib, edge bilinear filtering was wrong when using tetxureGather
Merge remote-tracking branch 'jme-master/master' into abies